JPH09306725A - Flexible magnet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a constantly strong attraction force even in the case where a surface to attract a magnet is curved, by embedding a plurality of magnets into a non-magnetic frame and connecting the adjacent magnets for free bending. SOLUTION: A plurality of circular magnets 6a, 6b are embedded into two non-magnetic frames 7a, 7b, and the adjacent magnets 6a, 6b are connected for free bending. A bending portion 8 is connected for freely bending using a soft, thin band-shaped flexible material 9. The non-magnetic frames 7a, 7b are made of a resin, and a thin band-shaped soft resin sheet is used for the flexible material 9. In connecting the magnets 6a, 6b for free bending, the magnets are narrowly connected at the center in the direction of thickness of the frames 7a, 7b made of the resin, so that the entire body flexes in the longitudinal direction. Thus, a flexible magnet may be provided which may obtain a strong attractive force even in the case where a surface to attract the magnet is curved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible magnet capable of obtaining a strong attracting force by being bendable even when the surface for attracting the magnet is curved.

[0002]

2. Description of the Related Art Conventionally, when a sheet of paper such as a refrigerator or a blackboard is attached to a steel plate by using a magnet, an opening 2 is provided in a resin frame 1 as shown in FIG. A magnet having a plurality of magnets 3 embedded in the center thereof, a resin bar-shaped frame 4 having a belt-shaped magnet 5 embedded therein as shown in FIG. 20, and the like are used.

[0003]

However, such a conventional magnet is preferable when the surface for attracting the magnet is flat,
If the surface that attracts the magnet is curved, both sides of the magnet will be detached, and the attracting force at the ends will weaken, or the attracting force will disappear, resulting in a strong attracting force as a whole. However, there is a problem that the function as a magnet is significantly deteriorated.

Therefore, as disclosed in Japanese Utility Model Laid-Open No. 5-90910, it is considered to connect a plurality of magnets with a linear flexible material such as a rope so that the magnets can be bent. However, when a flexible material such as a rope is used between the magnets, there is no pressing force between the magnets when paper is stuck, and there is a problem that a sufficient attraction force cannot be obtained.

In order to solve the above-mentioned problems, the present invention makes it possible to bend along a curved surface of a magnet attracting surface so that a strong attracting force can be obtained. It is intended to provide a flexible magnet.

[0006]

In order to solve the above problems, the present invention embeds a plurality of magnets in a non-magnetic frame,
The means is to flexibly connect adjacent magnets. Therefore, according to the present invention, even if the surface for attracting the magnet is curved, it is possible to bend along the curved surface, so that it is possible to give a strong attractive force to the end of the magnet. Will be able to fully fulfill its function as.

Still another aspect of the invention has as its means that the bent portion is foldably connected by a soft thin band-shaped flexible material. Therefore, according to the present invention, since the bent portion can sufficiently withstand repeated bending stress and can flexibly bend along the curved surface, even if the surface for attracting the magnet is curved, it is strong. Adsorption power can be obtained.

[0008] Still another invention is that the bent portion is connected by pin connection. Therefore, according to the present invention, since the bent portion can be rotated and easily bent along the curved surface, a strong attracting force can be obtained even if the surface for attracting the magnet is curved.

[0009]

FIG. 1 is a plan view of the front side showing one embodiment of the present invention, FIG. 2 is a plan view of the back side, and FIG. 3 is a sectional view thereof. In the present embodiment, an example in which two magnets 6a and 6b having a circular shape are embedded in nonmagnetic frame bodies 7a and 7b, and adjacent magnets 6a and 6b are flexibly connected Show. The bent portion 8 is foldably connected by a soft thin strip-shaped flexible material 9. The frame of the non-magnetic material is made of resin, and in the case of the present embodiment, the flexible material 9 is a thin strip-shaped soft resin sheet having a thickness of about 0.2 mm. When connecting the magnets 6a and 6b in a bendable manner, the magnets 6a and 6b were sandwiched at the center of the resin frame in the thickness direction so that the entire frame was bent in the length direction.

In the above embodiment, the nonmagnetic frame is made of resin, but any nonmagnetic material can be used. Furthermore, the flexible material 9 is not limited to the soft resin sheet, and an appropriate material can be used. Further, the connection is not limited to the sandwiching, but the resin frames 7a and 7b. Appropriate means such as being integrally formed with the above can be adopted.

FIG. 4 is a side view showing an embodiment of the present invention. As can be seen from this, in the direction of the arrow in the figure, the frame 7a,
By bending 7b, the frame in which the magnet is embedded is bent at the bent portion 8
Even if the surface for attracting the magnet is curved, a strong attraction force is exerted along the curved surface.

FIG. 5 is a plan view of the front side showing another embodiment of the present invention, FIG. 6 is a plan view of the back side, FIG. 7 is its sectional view, and FIG.
[Fig. 3] is a side view showing an embodiment. In the present embodiment, three magnets 6a, 6b, 6c each having a circular shape are
An example is shown in which the magnets 6a, 6b and 6c are embedded in non-magnetic frame bodies 7a, 7b and 7c and the adjacent magnets 6a, 6b and 6c are foldably connected to each other via bending portions 8a and 8b.

FIG. 9 is a front side plan view showing another embodiment of the present invention, FIG. 10 is a back side plan view, and FIG. 11 is a sectional view thereof.
FIG. 12 is a side view showing the embodiment. In the present embodiment, a plurality of strip-shaped or rod-shaped magnets 10a, 10b, 1
3 of 0c are non-magnetic rod-shaped frames 11a, 11b,
Magnets 10a, 10b, 10 which are embedded in 11c and are adjacent to each other.
An example is shown in which the portions c are foldably connected via the bent portions 8a and 8b.

FIG. 13 is a plan view of the front side showing another embodiment of the present invention, FIG. 14 is a plan view of the back side, FIG. 15 is its sectional view, and FIG. 16 is a side view showing an embodiment. In the present embodiment, a plurality of rectangular magnets 12a, 12b, 1
3 of 2c are non-magnetic rod-shaped frames 13a, 13b,
Magnets 12a, 12b, 12 adjacent to and embedded in 13c.
An example is shown in which the portions c are foldably connected via the bent portions 8a and 8b. The bent portions 8a and 8b are connected by the pin coupling 14
It is connected by a and 14b so that it can rotate.

FIG. 17 shows the bent portions 8, 8a, 8b of the present invention.
It is a principal part expanded sectional view which shows other embodiment about the structure of. Specifically, when the bent portions 8, 8a, 8b are flexibly connected with a soft thin band-shaped flexible material, instead of sandwiching them in the center of the cross section of a resin frame, It shows an example in which it is integrally formed with a frame body. That is, FIG.
0 (a) shows a thinned central portion in the thickness direction, (b) shows a thinned back side, and (c) shows a thinned front side.

FIG. 18 is an overall perspective view showing an embodiment of the present invention, and FIG. 19 is a plan view. In this embodiment, a steel plate surface 15 having a curved surface, such as a refrigerator,
An example of attaching the paper 16 using the flexible magnet of the present invention is shown. As the flexible magnet, the magnets shown in FIGS. 9, 10, and 11 are illustrated as an example. As can be seen from the above, when the flexible magnet of the present invention is used, a strong attracting force can be exerted along the curved surface even if the surface for attracting the magnet is curved. Even when other objects are locked, the function as a magnet can be fully exerted.

[0017]

According to the present invention, even when the surface for attracting the magnet is curved, it can be bent along the curved surface, so that the function as the magnet is not deteriorated.
You can always get a strong suction force.

[Brief description of drawings]

FIG. 1 is a plan view of a front side showing an embodiment of the present invention.

FIG. 2 is a plan view of a back side showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view of FIGS. 1 and 2.

FIG. 4 is an embodiment diagram of the present invention.

FIG. 5 is a front side plan view showing another embodiment of the present invention.

FIG. 6 is a backside plan view showing another embodiment of the present invention.

7 is a sectional view of FIG. 5 and FIG.

FIG. 8 is a view showing another embodiment of the present invention.

FIG. 9 is a front side plan view showing another embodiment of the present invention.

FIG. 10 is a plan view of the back side showing another embodiment of the present invention.

FIG. 11 is a sectional view of FIGS. 9 and 10.

FIG. 12 is a diagram of another embodiment of the present invention.

FIG. 13 is a front side plan view showing another embodiment of the present invention.

FIG. 14 is a plan view of the back side showing another embodiment of the present invention.

FIG. 15 is a sectional view of FIGS. 13 and 14.

FIG. 16 is a diagram of another embodiment of the present invention.

FIG. 17 is an enlarged view of a main part of a bent portion of the present invention.

FIG. 18 is an overall perspective view showing an embodiment of the present invention.

FIG. 19 is a plan view of FIG.

FIG. 20 is an overall perspective view of a conventional magnet

FIG. 21 is an overall perspective view of a conventional magnet

[Description of sign]

 1 Frame 2 Opening 3 Magnet 4 Frame 5 Magnet 6a, 6b Magnet 7a, 7b Frame 8, 8a, 8b Bend 9 Flexible material 10a, 10b, 10c Magnet 11a, 11b, 11c Frame 12a, 12b, 12c magnet 13a, 13b, 13c frame body 14a, 14b pin coupling

Claims (3)

[Claims] 1. A flexible magnet, wherein a plurality of magnets are embedded in a non-magnetic frame body, and adjacent magnets are flexibly connected to each other. 2. The flexible magnet according to claim 1, wherein the bent portions are foldably connected by a flexible material having a soft thin band shape. 3. The flexible magnet according to claim 1, wherein the bent portions are foldably connected by pin connection.